| Place | Post Code |
|---|---|
| Dong, Phiangxay | 02000 |
| Houayxang, Phiangxay | 02000 |
| Khem Neua, Phiangxay | 02000 |
| Mososane, Phiangxay | 02000 |
| Moxosanyicheu, Phiangxay | 02000 |
| Noy, Phiangxay | 02000 |
| Phiengxay, Phiangxay | 02000 |
| Xiengfa, Phiangxay | 02000 |
| All postal codes in Boon Neua | |
|---|---|
| Boun-nua, Boon Neua | |
| Donxay, Boon Neua | |
| Mai, Boon Neua | |
| Namlou, Boon Neua | |
| Ngay-nua, Boon Neua | |
| Phiangxay, Boon Neua | |
| Yo, Boon Neua | |